Event log visualization tool keeps a map from SSRC to parsed headers

webrtc/tools/event_log_visualizer/analyzer.h

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_TOOLS_EVENT_LOG_VISUALIZER_ANALYZER_H_
 #define WEBRTC_TOOLS_EVENT_LOG_VISUALIZER_ANALYZER_H_
 
 #include <vector>
+#include <map>
 
 #include "webrtc/call/rtc_event_log_parser.h"
 #include "webrtc/tools/event_log_visualizer/plot_base.h"
 
 namespace webrtc {
 namespace plotting {
 
 class EventLogAnalyzer {
  public:
   // The EventLogAnalyzer keeps a reference to the ParsedRtcEventLog for the
   // duration of its lifetime. The ParsedRtcEventLog must not be destroyed or
   // modified while the EventLogAnalyzer is being used.
   explicit EventLogAnalyzer(const ParsedRtcEventLog& log);
 
   void CreatePacketGraph(PacketDirection desired_direction, Plot* plot);
 
   void CreatePlayoutGraph(Plot* plot);
 
   void CreateSequenceNumberGraph(Plot* plot);
 
   void CreateDelayChangeGraph(Plot* plot);
 
   void CreateAccumulatedDelayChangeGraph(Plot* plot);
 
   void CreateTotalBitrateGraph(PacketDirection desired_direction, Plot* plot);
 
   void CreateStreamBitrateGraph(PacketDirection desired_direction, Plot* plot);
 
  private:
+  class StreamId {
+   public:
+    StreamId(uint32_t ssrc,
+             webrtc::PacketDirection direction,
+             webrtc::MediaType media_type)
+        : ssrc_(ssrc), direction_(direction), media_type_(media_type) {}
+    bool operator<(const StreamId& other) const;
+    bool operator==(const StreamId& other) const;
+    uint32_t GetSsrc() const { return ssrc_; }
+    webrtc::PacketDirection GetDirection() const { return direction_; }
+    webrtc::MediaType GetMediaType() const { return media_type_; }
+
+   private:
+    uint32_t ssrc_;
+    webrtc::PacketDirection direction_;
+    webrtc::MediaType media_type_;
+  };
+
+  struct LoggedRtpPacket {
+    LoggedRtpPacket(uint64_t timestamp, RTPHeader header)
+        : timestamp(timestamp), header(header) {}
+    uint64_t timestamp;
+    RTPHeader header;
+  };
+
   const ParsedRtcEventLog& parsed_log_;
 
   // A list of SSRCs we are interested in analysing.
   // If left empty, all SSRCs will be considered relevant.
   std::vector<uint32_t> desired_ssrc_;
 
+  // Maps a stream identifier consisting of ssrc, direction and MediaType
+  // to the parsed RTP headers in that stream. Header extensions are parsed
+  // if the stream has been configured.
+  std::map<StreamId, std::vector<LoggedRtpPacket>> rtp_packets_;
+
   // Window and step size used for calculating moving averages, e.g. bitrate.
   // The generated data points will be |step_| microseconds apart.
   // Only events occuring at most |window_duration_| microseconds before the
   // current data point will be part of the average.
   uint64_t window_duration_;
   uint64_t step_;
 
   // First and last events of the log.
   uint64_t begin_time_;
   uint64_t end_time_;
 };
 
 }  // namespace plotting
 }  // namespace webrtc
 
 #endif  // WEBRTC_TOOLS_EVENT_LOG_VISUALIZER_ANALYZER_H_